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Fang R, Zhang RS, Wang XT, Ye SB, Xia QY, Rao Q. [Clinicopathological and molecular genetic characteristics of 10 cases of epithelioid sarcoma]. Zhonghua Bing Li Xue Za Zhi 2024; 53:293-295. [PMID: 38433059 DOI: 10.3760/cma.j.cn112151-20231016-00266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Affiliation(s)
- R Fang
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - R S Zhang
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - X T Wang
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - S B Ye
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - Q Y Xia
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - Q Rao
- Department of Pathology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
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deBoer RJ, Febbraro M, Bardayan DW, Boomershine C, Brandenburg K, Brune C, Coil S, Couder M, Derkin J, Dede S, Fang R, Fritsch A, Gula A, Gyürky G, Hackett B, Hamad G, Jones-Alberty Y, Kelmar R, Manukyan K, Matney M, McDonaugh J, Meisel Z, Moylan S, Nattress J, Odell D, O'Malley P, Paris MW, Robertson D, Shahina, Singh N, Smith K, Smith MS, Stech E, Tan W, Wiescher M. Measurement of the ^{13}C(α, n_{0})^{16}O Differential Cross Section from 0.8 to 6.5 MeV. Phys Rev Lett 2024; 132:062702. [PMID: 38394565 DOI: 10.1103/physrevlett.132.062702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 09/05/2023] [Accepted: 01/17/2024] [Indexed: 02/25/2024]
Abstract
The cross section of the ^{13}C(α,n)^{16}O reaction is needed for nuclear astrophysics and applications to a precision of 10% or better, yet inconsistencies among 50 years of experimental studies currently lead to an uncertainty of ≈15%. Using a state-of-the-art neutron detection array, we have performed a high resolution differential cross section study covering a broad energy range. These measurements result in a dramatic improvement in the extrapolation of the cross section to stellar energies potentially reducing the uncertainty to ≈5% and resolving long standing discrepancies in higher energy data.
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Affiliation(s)
- R J deBoer
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M Febbraro
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - D W Bardayan
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - C Boomershine
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - K Brandenburg
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - C Brune
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - S Coil
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M Couder
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - J Derkin
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - S Dede
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - R Fang
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - A Fritsch
- Department of Physics, Gonzaga University, Spokane, Washington 99258, USA
| | - A Gula
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Gy Gyürky
- Institute for Nuclear Research (Atomki), P.O.B 51, H-4001 Debrecen, Hungary
| | - B Hackett
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - G Hamad
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - Y Jones-Alberty
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - R Kelmar
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - K Manukyan
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M Matney
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - J McDonaugh
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Z Meisel
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - S Moylan
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - J Nattress
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - D Odell
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - P O'Malley
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M W Paris
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D Robertson
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Shahina
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - N Singh
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - K Smith
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M S Smith
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - E Stech
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - W Tan
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - M Wiescher
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
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Qi S, Ma J, Yan G, Kirillov AM, Yang L, Fang R. Theoretical Analysis of a Three-Component Reaction between Two Diazo Compounds and a Hydroxylamine Derivative: Mechanism, Enantioselectivity, and Effect of Cooperative Catalysis. J Org Chem 2023. [PMID: 38032356 DOI: 10.1021/acs.joc.3c02061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
The mechanism, enantioselectivity, and effect of chiral phosphoric acid (CPA) cocatalyst were investigated by the density functional theory (DFT) for the three-component asymmetric aminohydroxylation between two diazo compounds and a hydroxylamine derivative. This type of cascade process is cooperatively catalyzed by Rh2(OAc)4 and CPA. The obtained results clearly indicate that the first step of the global reaction involves a nucleophilic attack at the nitrogen center of N-hydroxyaniline by rhodium-carbene intermediates producing imines. Subsequently, an enolate intermediate was recognized as the key species generated from the second diazo compound and the leaving benzyl alcohol (BnOH) fragment of the first step and in the presence of the same dirhodium catalyst. Then, the reaction is terminated by the asymmetric Mannich-type addition, delivering the aminohydroxylation products of an S-R conformation with the assistance of chiral phosphoric acid. The distortion/interaction analysis shows that the relative distortions of CPA and the enol play a vital role in the energy ordering of the stereocontrolling transition states (TSs). Furthermore, the influence of different substituents in CPA was fully rationalized by distortion/interaction analysis. This study opens up novel synthetic possibilities and improves the reaction predictability when exploring the related types of cooperatively catalyzed organic transformations.
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Affiliation(s)
- Simeng Qi
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Ji Ma
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Guowei Yan
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Alexander M Kirillov
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Lizi Yang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ran Fang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
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Crespo-Ramos G, Bebu I, Krause-Steinrauf H, Hoogendoorn CJ, Fang R, Ehrmann D, Presley C, Naik AD, Katona A, Walker EA, Cherrington A, Gonzalez JS. Emotional distress and cardiovascular disease risk among participants enrolled in the Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness (GRADE) study. Diabetes Res Clin Pract 2023; 203:110808. [PMID: 37394014 PMCID: PMC10592312 DOI: 10.1016/j.diabres.2023.110808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 06/06/2023] [Accepted: 06/26/2023] [Indexed: 07/04/2023]
Abstract
AIMS People with type 2 diabetes (T2DM) have an increased risk of cardiovascular disease (CVD). We examined depressive symptoms (DS) and diabetes distress (DD) in relation to the estimated 10-year risk of CVD in adults with T2DM enrolled in the GRADE Emotional Distress Substudy. METHODS Linear regression models examined the associations of baseline DS and DD with estimated 10-year risk of CVD using the Atherosclerotic Cardiovascular Disease (ASCVD) risk score, adjusting for age, sex, race/ethnicity, education, income, diabetes duration, diabetes-related complications, and HbA1c. RESULTS A total of 1,605 GRADE participants were included: 54% Non-Latino (NL) White, 18% Latino, 19% NL-Black, 66% male, mean age 57.5 (SD = 10.25) years, diabetes duration 4.2 (SD = 2.8) years, and HbA1c 7.5% (SD = 0.5%). After incorporating covariates, only DS, especially cognitive-affective symptoms, were associated with ASCVD risk (estimate = 0.15 [95% CI: 0.04, 0.025], p = 0.006). Higher DS remained significantly associated with higher ASCVD risk when adding DD to covariates (estimate = 0.19 [95% CI: 0.07, 0.30], p = 0.002). DD was not associated with ASCVD risk when accounting for covariates. CONCLUSIONS Depressive symptoms, particularly cognitive-affective symptoms, are associated with increased 10-year predicted ASCVD risk among adults with early T2DM. Diabetes distress is not significantly associated with the predicted ASCVD risk when accounting for covariates.
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Affiliation(s)
- Gladys Crespo-Ramos
- Department of Medicine (Endocrinology), Albert Einstein College of Medicine, Bronx, NY, USA
| | - Ionut Bebu
- The Biostatistics Center, Department of Biostatistics and Bioinformatics, Milken Institute School of Public Health, The George Washington University, Rockville, MD, USA
| | - Heidi Krause-Steinrauf
- The Biostatistics Center, Department of Biostatistics and Bioinformatics, Milken Institute School of Public Health, The George Washington University, Rockville, MD, USA
| | | | - Ran Fang
- Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY, USA
| | - Dominic Ehrmann
- Research Institute Diabetes Academy Mergentheim (FIDAM), Bad Mergentheim, Germany; Department of Clinical Psychology and Psychotherapy, University of Bamberg, Bamberg, Germany
| | - Caroline Presley
- Department of Medicine (General Internal and Preventive Medicine) University of Alabama, Birmingham, Birmingham, AL, USA
| | - Aanand D Naik
- School of Public Health, University of Texas Health Science Center, Houston, TX, USA
| | | | - Elizabeth A Walker
- Department of Medicine (Endocrinology), Albert Einstein College of Medicine, Bronx, NY, USA
| | - Andrea Cherrington
- Department of Medicine (General Internal and Preventive Medicine) University of Alabama, Birmingham, Birmingham, AL, USA
| | - Jeffrey S Gonzalez
- Department of Medicine (Endocrinology), Albert Einstein College of Medicine, Bronx, NY, USA; Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY, USA; Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA; New York-Regional Center for Diabetes Translation Research, Albert Einstein College of Medicine, Bronx, NY, USA.
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5
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Wan L, Liu K, Kirillov AM, Fang R, Yang L. Fabrication of Cellulose Filters Incorporating Metal-Organic Frameworks for Efficient Nicotine Adsorption from Cigarette Smoke. Langmuir 2023; 39:5364-5374. [PMID: 37011410 DOI: 10.1021/acs.langmuir.2c03454] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
To prevent negative effects of smoking, there is constant research on the development of various types of sustainable filter materials, capable of removing toxic compounds present in cigarette smoke. Because of the extraordinary porosity and adsorption properties, metal-organic frameworks (MOFs) represent promising adsorbents for volatile toxic molecules such as nicotine. This study reports new hybrid materials wherein six types of common MOFs of different porosity and particle size are incorporated into sustainable cellulose fiber from bamboo pulp, resulting in a series of cellulose filter samples abbreviated as MOF@CF. The obtained hybrid cellulose filters were fully characterized and investigated in nicotine adsorption from cigarette smoke, using a specially designed experimental setup. The results revealed that the UiO-66@CF material features the best mechanical performance, facile recyclability, and excellent nicotine adsorption efficiency that attains 90% with relative standard deviations lower than 8.80%. This phenomenon may be caused by the large pore size, open metal sites, and high loading of UiO-66 in cellulose filters. Additionally, the high adsorption capacity showed almost 85% removal of nicotine after the third adsorption cycle. The DFT calculation methods allowed further investigation of the nicotine adsorption mechanism, showing that the energy difference between HOMO and LUMO for UiO-66 was the closest to that of nicotine, which further proves the adsorption ability of nicotine by this material. Owing to the flexibility, recyclability, and excellent adsorption performance, the prepared hybrid MOF@CF materials may find prospective applications in nicotine adsorption from cigarette smoke.
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Affiliation(s)
- Li Wan
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Kunyang Liu
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Alexander M Kirillov
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Ran Fang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Lizi Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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6
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Song R, Mao B, Wang Z, Hui Y, Zhang N, Fang R, Zhang J, Wu Y, Ge Q, Novoselov KS, He D. Comparison of copper and graphene-assembled films in 5G wireless communication and THz electromagnetic-interference shielding. Proc Natl Acad Sci U S A 2023; 120:e2209807120. [PMID: 36812210 PMCID: PMC9992768 DOI: 10.1073/pnas.2209807120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 12/28/2022] [Indexed: 02/24/2023] Open
Abstract
Since first developed, the conducting materials in wireless communication and electromagnetic interference (EMI) shielding devices have been primarily made of metal-based structures. Here, we present a graphene-assembled film (GAF) that can be used to replace copper in such practical electronics. The GAF-based antennas present strong anticorrosive behavior. The GAF ultra-wideband antenna covers the frequency range of 3.7 GHz to 67 GHz with the bandwidth (BW) of 63.3 GHz, which exceed ~110% than the copper foil-based antenna. The GAF Fifth Generation (5G) antenna array features a wider BW and lower sidelobe level compared with that of copper antennas. EMI shielding effectiveness (SE) of GAF also outperforms copper, reaching up to 127 dB in the frequency range of 2.6 GHz to 0.32 THz, with a SE per unit thickness of 6,966 dB/mm. We also confirm that GAF metamaterials exhibit promising frequency selection characteristics and angular stability as flexible frequency selective surfaces.
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Affiliation(s)
- Rongguo Song
- Hubei Engineering Research Center of Radio-Frequency (RF)-Microwave Technology and Application, Wuhan University of Technology, Wuhan430070, China
| | - Boyang Mao
- National Graphene Institute, University of Manchester, ManchesterM13 9PL, UK
- Chongqing Two-Dimensional (2D) Materials Institute, Chongqing400714, China
| | - Zhe Wang
- Hubei Engineering Research Center of Radio-Frequency (RF)-Microwave Technology and Application, Wuhan University of Technology, Wuhan430070, China
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan430070, China
| | - Yueyue Hui
- Hubei Engineering Research Center of Radio-Frequency (RF)-Microwave Technology and Application, Wuhan University of Technology, Wuhan430070, China
| | - Ning Zhang
- Hubei Engineering Research Center of Radio-Frequency (RF)-Microwave Technology and Application, Wuhan University of Technology, Wuhan430070, China
| | - Ran Fang
- Hubei Engineering Research Center of Radio-Frequency (RF)-Microwave Technology and Application, Wuhan University of Technology, Wuhan430070, China
| | - Jingwei Zhang
- Hubei Engineering Research Center of Radio-Frequency (RF)-Microwave Technology and Application, Wuhan University of Technology, Wuhan430070, China
| | - Yuen Wu
- School of Chemistry and Materials Science, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), the Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei National Laboratory for Physical Sciences at the Microscale, Hefei230026, China
| | - Qi Ge
- Chongqing Two-Dimensional (2D) Materials Institute, Chongqing400714, China
| | - Kostya S. Novoselov
- National Graphene Institute, University of Manchester, ManchesterM13 9PL, UK
- Chongqing Two-Dimensional (2D) Materials Institute, Chongqing400714, China
- Department of Materials Science and Engineering, National University of Singapore, Singapore117575, Singapore
- Centre for Advanced Two-Dimensional (2D) Materials, National University of Singapore, Singapore117546, Singapore
| | - Daping He
- Hubei Engineering Research Center of Radio-Frequency (RF)-Microwave Technology and Application, Wuhan University of Technology, Wuhan430070, China
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan430070, China
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7
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Li GM, Han X, Wu Y, Wang W, Tang HX, Lu MP, Tang XM, Lin Y, Deng F, Yang J, Wang XN, Liu CC, Zheng WJ, Wu BB, Zhou F, Luo H, Zhang L, Liu HM, Guan WZ, Wang SH, Tao PF, Jin TJ, Fang R, Wu Y, Zhang J, Zhang Y, Zhang TN, Yin W, Guo L, Tang WJ, Chang H, Zhang QY, Li XZ, Li JG, Zhou ZX, Yang SR, Yang KK, Xu H, Song HM, Deuitch NT, Lee PY, Zhou Q, Sun L. A Cohort Study on Deficiency of ADA2 from China. J Clin Immunol 2023; 43:835-845. [PMID: 36807221 PMCID: PMC10110724 DOI: 10.1007/s10875-023-01432-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 01/08/2023] [Indexed: 02/21/2023]
Abstract
PURPOSE Deficiency of adenosine deaminase 2 (DADA2), an autosomal recessive autoinflammatory disorder caused by biallelic loss-of-function variants in adenosine deaminase 2 (ADA2), has not been systemically investigated in Chinese population yet. We aim to further characterize DADA2 cases in China. METHODS A retrospective analysis of patients with DADA2 identified through whole exome sequencing (WES) at seventeen rheumatology centers across China was conducted. Clinical characteristics, laboratory findings, genotype, and treatment response were analyzed. RESULTS Thirty patients with DADA2 were enrolled between January 2015 and December 2021. Adenosine deaminase 2 enzymatic activity was low in all tested cases to confirm pathogenicity. Median age of disease presentation was 4.3 years and the median age at diagnosis was 7.8 years. All but one patient presented during childhood and two subjects died from complications of their disease. The patients most commonly presented with systemic inflammation (92.9%), vasculitis (86.7%), and hypogammaglobinemia (73.3%) while one patient presented with bone marrow failure (BMF) with variable cytopenia. Twenty-three (76.7%) patients were treated with TNF inhibitors (TNFi), while two (6.7%) underwent hematopoietic stem cell transplantation (HSCT). They all achieved clinical remission. A total of thirty-nine ADA2 causative variants were identified, six of which were novel. CONCLUSION To establish early diagnosis and improve clinical outcomes, genetic screening and/or testing of ADA2 enzymatic activity should be performed in patients with suspected clinical features. TNFi is considered as first line treatment for those with vascular phenotypes. HSCT may be beneficial for those with hematological disease or in those who are refractory to TNFi.
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Affiliation(s)
- Guo-Min Li
- National Children's Medical Center, Shanghai, China.,Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China
| | - Xu Han
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Ye Wu
- Peking University First Hospital, Beijing, China
| | - Wei Wang
- Department of Pediatrics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Hong-Xia Tang
- Wuhan Children's Hospital Tongji Medical College Huazhong University of Science & Technology, Wuhan, China
| | - Mei-Ping Lu
- Department of Rheumatology Immunology and Allergy, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xue-Mei Tang
- Department of Rheumatology and Immunology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yi Lin
- Affiliated Hospital of Qingdao University, Qingdao, China
| | - Fan Deng
- The Children's Hospital of Soochow, Suzhou, China
| | - Jun Yang
- Department of Rheumatology and Immunology, Shenzhen Children's Hospital, Shenzhen, China
| | - Xin-Ning Wang
- Affiliated Children's Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Cong-Cong Liu
- Division of Rheumatology, Immunology & Allergy in the Department of Pediatrics, The First Hospital of Jilin University, Changchun, China
| | - Wen-Jie Zheng
- Department of Rheumatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Bing-Bing Wu
- National Children's Medical Center, Shanghai, China.,Medical Transformation Centre, Children's Hospital of Fudan University, Shanghai, China
| | - Fang Zhou
- No. 960 Hospital of the Joint Service Support Force of the Chinese People's Liberation Army, Jinan, China
| | - Hong Luo
- Department of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Liang Zhang
- Hunan Provincial People's Hospital, Hunan, China
| | - Hai-Mei Liu
- National Children's Medical Center, Shanghai, China.,Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China
| | - Wan-Zhen Guan
- National Children's Medical Center, Shanghai, China.,Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China
| | - Shi-Hao Wang
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Pan-Feng Tao
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Tai-Jie Jin
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Ran Fang
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Yuan Wu
- Peking University First Hospital, Beijing, China
| | - Jie Zhang
- Peking University First Hospital, Beijing, China
| | - Yao Zhang
- Peking University First Hospital, Beijing, China
| | - Tian-Nan Zhang
- Department of Pediatrics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Yin
- Wuhan Children's Hospital Tongji Medical College Huazhong University of Science & Technology, Wuhan, China
| | - Li Guo
- Department of Rheumatology Immunology and Allergy, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wen-Jing Tang
- Department of Rheumatology and Immunology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Hong Chang
- Affiliated Hospital of Qingdao University, Qingdao, China
| | - Qiu-Ye Zhang
- Affiliated Hospital of Qingdao University, Qingdao, China
| | | | - Jian-Guo Li
- Affiliated Children's Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Zhi-Xuan Zhou
- Affiliated Children's Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Si-Rui Yang
- Division of Rheumatology, Immunology & Allergy in the Department of Pediatrics, The First Hospital of Jilin University, Changchun, China
| | - Kang-Kang Yang
- Department of Rheumatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hong Xu
- National Children's Medical Center, Shanghai, China.,Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China
| | - Hong-Mei Song
- Department of Pediatrics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | | | - Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Qing Zhou
- Life Sciences Institute, Zhejiang University, Hangzhou, China.
| | - Li Sun
- National Children's Medical Center, Shanghai, China. .,Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China.
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8
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Dai S, Yang XJ, Fang R, Kirillov A, Yang L. DFT study of Ni-catalyzed (3+3)-Annulation between Donor-Acceptor Cyclopropanes and Diaziridines. Org Chem Front 2023. [DOI: 10.1039/d3qo00186e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
The mechanism and stereoselectivity of the Ni (II)-catalyzed [3+3] annulation between donor-acceptor cyclopropanes (DACs) and diaziridines was studied by DFT calculations. The obtained results show that the entire reaction comprises...
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9
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Zhang J, Wang X, Liu J, Wang X, Yang X, Zhao Q, Ma Y, Fang R, Szostak M. Ruthenium(0)-Catalyzed Cross-Coupling of Aryl Methyl Ethers with Organoboranes by Selective C–O Cleavage. Org Chem Front 2023. [DOI: 10.1039/d3qo00042g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The activation of C–O bonds in aryl methyl ethers is a fundamental method for cross-coupling of carbon–oxygen bonds, however, this process is highly challenging due to the high dissociation energy...
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Kong L, Wang Y, Chen L, Fang R, Li Y, Fang C, Dong L, Yuan X, Kong F, Liu B, Cheng Q, Lu S. Candidate loci for breeding compact plant-type soybean varieties. Mol Breed 2023; 43:6. [PMID: 37312867 PMCID: PMC10248646 DOI: 10.1007/s11032-022-01352-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/24/2022] [Indexed: 06/15/2023]
Abstract
Plant height and node number are important agronomic traits that influence yield in soybean (Glycine max L.). Here, to better understand the genetic basis of the traits, we used two recombinant inbred line (RIL) populations to detect quantitative trait loci (QTLs) associated with plant height and node number in different environments. This analysis detected 9 and 21 QTLs that control plant height and node number, respectively. Among them, we identified two genomic regions that overlap with Determinate stem 1 (Dt1) and Dt2, which are known to influence both plant height and node number. Furthermore, different combinations of Dt1 and Dt2 alleles were enriched in distinct latitudes. In addition, we determined that the QTLs qPH-13-SE and qPH-13-DW in the two RIL populations overlap with genomic intervals associated with plant height and the QTL qNN-04-DW overlaps with an interval associated with node number. Combining the dwarf allele of qPH-13-SE/qPH-13-DW and the multiple-node allele of qNN-04-DW produced plants with ideal plant architecture, i.e., shorter main stems with more nodes. This plant type may help increase yield at high planting density. This study thus provides candidate loci for breeding elite soybean cultivars for plant height and node number. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-022-01352-2.
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Affiliation(s)
- Lingping Kong
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, School of Life Sciences, Guangzhou University, Guangzhou, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Yanping Wang
- Heilongjiang Academy of Agricultural Sciences, Mudanjiang, China
| | - Liyu Chen
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, School of Life Sciences, Guangzhou University, Guangzhou, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Ran Fang
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, School of Life Sciences, Guangzhou University, Guangzhou, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Yaru Li
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, School of Life Sciences, Guangzhou University, Guangzhou, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Chao Fang
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, School of Life Sciences, Guangzhou University, Guangzhou, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Lidong Dong
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, School of Life Sciences, Guangzhou University, Guangzhou, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Xiaohui Yuan
- School of Computer Science and Technology, Wuhan University of Technology, Wuhan, China
| | - Fanjiang Kong
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, School of Life Sciences, Guangzhou University, Guangzhou, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
- The Innovative Academy of Seed Design, Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
| | - Baohui Liu
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, School of Life Sciences, Guangzhou University, Guangzhou, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
- The Innovative Academy of Seed Design, Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
| | - Qun Cheng
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, School of Life Sciences, Guangzhou University, Guangzhou, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Sijia Lu
- Guangdong Key Laboratory of Plant Adaptation and Molecular Design, School of Life Sciences, Guangzhou University, Guangzhou, China
- Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, China
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Xie Y, Dai S, Wang Y, Wang X, Sun Y, Ju Z, Fang R, Zhang B, Wu J, Zhang X, Pan X. Structural and mechanistic studies of excitation- and temperature-tunable multicolor luminescence of triarylborane. CrystEngComm 2023. [DOI: 10.1039/d2ce01590k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
The development of single-component organic systems with different phosphorescent behaviors remains a formidable challenge. Herein, an organic triarylborane has been synthesized, (3-bromo-2-(phenylethynyl)phenyl)dimesitylborane (1), which can be obtained as racemate (rac-1)...
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12
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Cui SF, Wang JW, Li HF, Fang R, Yu X, Lu YJ. Microencapsulation of Capsaicin in Chitosan Microcapsules: Characterization, Release Behavior, and Pesticidal Properties against Tribolium castaneum (Herbst). Insects 2022; 14:27. [PMID: 36661955 PMCID: PMC9864733 DOI: 10.3390/insects14010027] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Capsaicin is a capsaicinoid in hot chili peppers, with excellent antibacterial and antimicrobial activities and a good safety profile, but its poor solubility and instability restrict its effectiveness. This limitation may be mitigated by encapsulation. Herein, capsaicin microcapsules (CCMs) were prepared through layer-by-layer self-assembly, using chitosan and carboxymethyl chitosan as shell materials. The chemical and microstructure structural characterization was evaluated by the methods of Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The SEM indicated the microcapsules were irregular in shape with an average size of about 100 μm. The encapsulation had a high loading efficiency of 64.31%. FTIR and XRD revealed the absence of the interaction between the core and shell materials and the amorphous nature of the CCMs. The analysis results of the microcapsules' release behavior showed the burst release of capsaicin in 7 days and a slow progression afterward in three solutions, with the highest release properties in a basic solution, followed by acidic and neutral salt solutions. The entomotoxicity of CCMs was conducted against Tribolium castaneum (Herbst), and its efficacy was compared with pure capsaicin. The CCMs were found to be highly effective against this pest. The LC50 value for capsaicin and its microcapsules was 31.37 and 29.75 mg/kg on adults, respectively. According to these values, T. castaneum's development and reproduction were significantly inhibited compared with the control group. The excellent physicochemical characteristics and insecticidal performance show a high application value for integrated pest control.
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Affiliation(s)
| | | | | | | | | | - Yu-Jie Lu
- Correspondence: ; Tel./Fax: +86-21-85626711
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Zhang J, Li X, Li T, Zhang G, Wan K, Ma Y, Fang R, Szostak R, Szostak M. Copper(I)–Thiazol-2-ylidenes: Highly Reactive N-Heterocyclic Carbenes for the Hydroboration of Terminal and Internal Alkynes. Ligand Development, Synthetic Utility, and Mechanistic Studies. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an710021, China
| | - Xue Li
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an710021, China
| | - Tao Li
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an710021, China
| | - Gaopeng Zhang
- Kaili Catalyst & New Materials Co., Limited, Xi’an710299, China
| | - Kerou Wan
- Kaili Catalyst & New Materials Co., Limited, Xi’an710299, China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an710021, China
| | - Ran Fang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an710021, China
| | - Roman Szostak
- Department of Chemistry, Wroclaw University, F. Joliot-Curie 14, Wroclaw50-383, Poland
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey07102, United States
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Wen P, Yan Q, Dong R, Han Y, Fang R, Fan M. Interactions Balancing Competition and Cooperation between Covalent-Organic Framework Additives and PEG Base Oil toward Advanced Lubrication. ACS Appl Mater Interfaces 2022; 14:51476-51486. [PMID: 36341506 DOI: 10.1021/acsami.2c13908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Severe competition between nanolubricant additives and polar lubricating oil molecules for the formation of lubricant films has been hindering the progress of green and advanced lubricants. In this work, based on the tautomerism of cyanuric acid molecule (trione and triol configurations), two kinds of triazine-based covalent-organic frameworks (COFs), that is, Ton-COFs and Tol-COFs, were synthesized as additives of the polar PEG 400 oil, realizing compromise between them by providing delicate interactions. The triazine matrix bonding with intense polar groups in the framework of additives offers more powerful interactions to competitively form the adsorbed lubricant film on the surface of the metal substrate over PEG 400 oil and also bolts PEG 400 oil molecules by the hydrogen bonding inside the pore of the framework to cooperatively bear against the load. Molecular quantum chemical calculations further confirm that Ton-COFs can produce a more intense interaction with Fe atoms in the form of coordination and ions···π than Tol-COFs, far beyond PEG 400, and the cross-sectional profile of the worn surface definitely exhibits a protective lubricant film only composed of Ton-COFs. Consequently, at the low concentration of 0.3 wt %, the excellent friction reduction (41.2%) and antiwear property (97.4%) are achieved for the Ton-COFs compared to pure PEG 400 oil; moreover, 28.6% and 79.0% for Tol-COFs at the essential concentration of 0.7 wt % are achieved. This finding provides a novel insight from molecules to materials into guiding the development of additives for advanced lubricants.
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Affiliation(s)
- Ping Wen
- College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Qianqian Yan
- College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Rui Dong
- College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Yunyan Han
- College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Ran Fang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Mingjin Fan
- College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
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Zhang J, Liu J, Wang X, Yang X, Ma Y, Fang R, Zhao Q, Szostak M. Ruthenium-Catalyzed C–F Bond Arylation of Polyfluoroarenes: Polyfluorinated Biaryls by Integrated C–F/C–H Functionalization. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Jiale Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Xiaogang Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Xinkan Yang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Ran Fang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Qun Zhao
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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Gong T, Lu T, Mi JX, Fang R, Shan C. [Research progress on the mechanisms of cryotherapy and its application in laryngopharyngeal diseases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1023-1027. [PMID: 36058675 DOI: 10.3760/cma.j.cn115330-20211221-00811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- T Gong
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - T Lu
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - J X Mi
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - R Fang
- the Department of Otolaryngology-Head and Neck Surgery, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai 200031, China
| | - Chunlei Shan
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China Center of Rehabilitation Medicine, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China Engineering Research Center of Traditional Chinese Medicine Intelligent Rehabilitation, Ministry of Education, Shanghai 201203, China
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17
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Liao H, Fang R, Yang JB, Xu DL. A linguistic belief-based evidential reasoning approach and its application in aiding lung cancer diagnosis. Knowl Based Syst 2022. [DOI: 10.1016/j.knosys.2022.109559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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18
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Fang R, Liao H, Mardani A. How to aggregate uncertain and incomplete cognitive evaluation information in lung cancer treatment plan selection? A method based on Dempster-Shafer theory. Inf Sci (N Y) 2022. [DOI: 10.1016/j.ins.2022.04.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Fang R, Liu K, Kirillov AM, Yang L. DFT Rationalization of Gold(I)-Catalyzed Couplings between Alkynyl Thioether and Nitrenoid Derivatives: Mechanism, Selectivity Patterns, and Effects of Substituents. J Org Chem 2022; 87:7193-7201. [PMID: 35579210 DOI: 10.1021/acs.joc.2c00407] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The present work focuses on a theoretical investigation of mechanistic features, chemoselectivity, regioselectivity, and effect of substituents in the gold-catalyzed reactions of alkynyl thioethers and isoxazoles. The DFT calculations reveal that the nucleophilic attack of isoxazole to a β-position of catalyst-bound ynamide forms a vinyl intermediate. This undergoes cleavage of the N-O isoxazole bond and isomerizes to form an α-imino α'-sulfenyl gold carbene complex with stabilization of the Au-S interaction. For 3,5-dimethylisoxazole, the reaction follows a formal [3 + 2] cycloaddition pathway and a 1,3-H migration to give the pyrrole products. Replacement of 3,5-dimethylisoxazole by 3,5-dimethyl-4-phenylisoxazole leads to the formation of deacylative annulation products and desulfenylated 3-acylated pyrroles. Reactions with 4-methyl-3,5-diphenylisoxazoles induce the formation of N-acylated pyrroles and desulfenylated 3-acylated pyrroles. For the minor pathway, the α-addition and 1,2-S migration result in sulfur-substituted β-keto enamide derivatives. In addition, the unique features of regio- and chemoselectivity were rationalized by the distortion and interaction analysis. Apart from fully rationalizing the experimental results, the theoretical DFT data give an important support for comprehending related types of reaction mechanisms.
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Affiliation(s)
- Ran Fang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Kunyang Liu
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Alexander M Kirillov
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisbon 1049-001, Portugal
| | - Lizi Yang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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Yu Y, Lin D, Liu Z, Fang R, Zheng S, Cheng Y, Huang Z, Ng CW, Lau HYA. 6-O-angeloylplenolin inhibits anti-IgE-stimulated human mast cell activation via suppressing calcium influx and ERK phosphorylation. Iran J Basic Med Sci 2022; 25:629-634. [PMID: 35911641 PMCID: PMC9282743 DOI: 10.22038/ijbms.2022.64132.14120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/23/2022] [Indexed: 11/08/2022]
Abstract
Objectives Mast cells are important immune cells that primarily localize in the interface between the host and external environment, and protect us from pathogen infection. However, they are also involved in the pathology of allergic diseases such as asthma and atopic dermatitis. A novel S phase kinase-associated protein 1 (SKP1) inhibitor 6-O-angeloylplenolin (6-OAP), was studied with its potential ability to alleviate the anti-IgE-induced inflammatory responses of primary human cultured mast cells (HCMCs) and LAD2 cell line. Materials and Methods We isolated the HCMCs from the buffy coat of voluntary blood donors. The effects of 6-OAP on mast cell activation were evaluated by measuring degranulation, cytokine release, migration, calcium influx, and ERK phosphorylation using spectro-fluorescence assay, multiplex cytometric bead assay/ELISA, migration assay, Fluo-4 calcium flux assay, and western blot, respectively. Results It was found that 6-OAP exerted anti-inflammatory effects on human mast cells by dose-dependently suppressing the anti-IgE-mediated degranulation and release of cytokines such as proinflammatory cytokines (IL-8 and TNF-α), growth factors (GM-CSF, VEGF, and FGF), and chemokines (CCL2 and CCL3) in HCMC and LAD2 cells. It also suppressed the migration of immature HCMCs induced by CXCL12. Moreover, the process of calcium influx and ERK phosphorylation in activated HCMC cells were inhibited by 6-OAP administration. Conclusion Our results showed that 6-OAP inhibited anti-IgE-induced inflammatory responses of human mast cells via suppressing calcium influx and ERK phosphorylation.
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Affiliation(s)
- Yangyang Yu
- Shenzhen University Health Science Center, Shenzhen, China,Corresponding author: Yangyang Yu. Shenzhen University Health Science Center, No. 1066 Xueyuan Avenue, Nanshan District, Shenzhen, China. Tel: +86-13603059069;
| | - Dongxu Lin
- Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhenyu Liu
- GI Division, Shenzhen University General Hospital, Shenzhen, China
| | - Ran Fang
- Shenzhen University Health Science Center, Shenzhen, China
| | - Siman Zheng
- Shenzhen University Health Science Center, Shenzhen, China
| | - Yongxian Cheng
- Shenzhen University Health Science Center, Shenzhen, China
| | - Zhong Huang
- Shenzhen University Health Science Center, Shenzhen, China
| | - Chun Wai Ng
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Hang Yung Alaster Lau
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
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Zhang J, Wang Y, Zhang Y, Liu T, Fang S, Wang R, Ma Y, Fang R, Szostak R, Szostak M. Application of Indazolin-3-ylidenes in Catalysis: Steric Tuning of Nonclassical Formally Normal N-Heterocyclic Carbenes with Dual Electronic Character for Catalysis. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00140] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yue Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yuting Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Ting Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Shuai Fang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Ruihong Wang
- Institute of Frontier Science and Technology Transfer, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Ran Fang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Roman Szostak
- Department of Chemistry, Wroclaw University, F. Joliot-Curie 14, Wroclaw 50-383, Poland
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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22
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Wang J, Ye Q, Zheng W, Yu X, Luo F, Fang R, Shangguan Y, Du Z, Lee PY, Jin T, Zhou Q. Low-ratio somatic NLRC4 mutation causes late-onset autoinflammatory disease. Ann Rheum Dis 2022; 81:1173-1178. [DOI: 10.1136/annrheumdis-2021-221708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 04/06/2022] [Indexed: 11/03/2022]
Abstract
ObjectivesWe aim to investigate the genetic basis of a case of late-onset autoinflammatory disease characterised by arthritis, recurrent fever and skin rashes.MethodsWe performed whole-exome/genome sequencing and digital droplet PCR (ddPCR) to identify the pathogenic somatic mutation. We used single-cell RNA sequencing (scRNA-seq), intracellular cytokine staining, quantitative PCR, immunohistochemistry and western blotting to define inflammatory signatures and to explore the pathogenic mechanism.ResultsWe identified a somatic mutation in NLRC4 (p.His443Gln) with the highest mosaicism ratio in the patient’s monocytes (5.69%). The somatic mutation resulted in constitutive NLRC4 activation, spontaneous apoptosis-associated speck-like protein containing a C-terminal caspase recruitment domain (ASC) aggregation, caspase-1 hyperactivation and increased production of interleukin (IL)-1β and IL-18. Moreover, we demonstrated effective suppression of inflammatory cytokine production by targeting gasdermin D, an approach that could be considered as a novel treatment strategy for patients with NLRC4-associated autoinflammatory syndrome.ConclusionsWe reported a case of a late-onset autoinflammatory disease caused by a somatic NLRC4 mutation in a small subset of leucocytes. We systemically analysed this condition at a single-cell transcriptomic level and revealed specific enhancement of inflammatory response in myeloid cells.
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Tao P, Wang S, Ozen S, Lee PY, Zhang J, Wang J, Han H, Yang Z, Fang R, Tsai WL, Yang H, Sag E, Topaloglu R, Aksentijevich I, Yu X, Zhou Q. Deubiquitination of proteasome subunits by OTULIN regulates type I IFN production. Sci Adv 2021; 7:eabi6794. [PMID: 34797715 PMCID: PMC8604410 DOI: 10.1126/sciadv.abi6794] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
OTULIN is a linear deubiquitinase that negatively regulates the nuclear factor κB (NF-κB) signaling pathway. Patients with OTULIN deficiency, termed as otulipenia or OTULIN-related autoinflammatory syndrome, present with early onset severe systemic inflammation due to increased NF-κB activation. We aimed to investigate additional disease mechanisms of OTULIN deficiency. Our study found a remarkable activation of type I interferon (IFN-I) signaling in whole blood, peripheral blood mononuclear cells, monocytes, and serum from patients with OTULIN deficiency. We observed similar immunologic findings in OTULIN-deficient cell lines generated by CRISPR. Mechanistically, we identified proteasome subunits as substrates of OTULIN deubiquitinase activity and demonstrated proteasome dysregulation in OTULIN-deficient cells as the cause of IFN-I activation. These results reveal an important role of linear ubiquitination in the regulation of proteasome function and suggest a link in the pathogenesis of proteasome-associated autoinflammatory syndromes and OTULIN deficiency.
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Affiliation(s)
- Panfeng Tao
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
| | - Shihao Wang
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Seza Ozen
- Department of Pediatric Rheumatology, Hacettepe University, Ankara, Turkey
| | - Pui Y. Lee
- Division of Immunology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Jiahui Zhang
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Jun Wang
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Huan Han
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Zhaohui Yang
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Ran Fang
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Wanxia Li Tsai
- Translational Immunology Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, MD, USA
| | | | - Erdal Sag
- Department of Pediatric Rheumatology, Hacettepe University, Ankara, Turkey
| | - Rezan Topaloglu
- Department of Pediatric Nephrology, Hacettepe University, Ankara, Turkey
| | - Ivona Aksentijevich
- Inflammatory Disease Section, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Xiaomin Yu
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Kidney Disease Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qing Zhou
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
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24
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Cao T, Gao C, Kirillov AM, Fang R, Yang L. DFT quest for mechanism and stereoselectivity in B(C6F5)3-catalyzed cyclopropanation of alkenes with aryldiazoacetates. Molecular Catalysis 2021. [DOI: 10.1016/j.mcat.2021.111980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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25
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Fang R, Wang J, Jiang XY, Wang SH, Cheng H, Zhou Q. Case Report: A Novel Mutation in NFKB1 Associated With Pyoderma Gangrenosum. Front Genet 2021; 12:673453. [PMID: 34447408 PMCID: PMC8383449 DOI: 10.3389/fgene.2021.673453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 07/13/2021] [Indexed: 11/25/2022] Open
Abstract
Pyoderma gangrenosum (PG) is a rare, destructive inflammatory skin disease of which a painful nodule or pustule breaks down to form a progressively enlarging ulcer. Ulcerations associated with PG may occur after trauma or injury to the skin. The etiology has not been clearly elucidated. Our report described a PG patient with a heterozygous splice-donor-site mutation in NFKB1 (c.730+5G>A) causing the absence of exon 8 and the formation of truncated p105 (p.Asp191_Lys244delinsGlu; p105delEx8), which led to distinct symptoms of high fever and excessive inflammation in wound area after routine surgical procedures. The functional analysis showed that the variant caused reduced phosphorylation of p105 and resulted in the decreased processing of p105 to p50. We conclude that the patient's symptoms were caused by dysregulation of the NF-κB signaling pathway.
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Affiliation(s)
- Ran Fang
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Jun Wang
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Xiao-Yun Jiang
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shi-Hao Wang
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Hao Cheng
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Qing Zhou
- The MOE Key Laboratory of Biosystems Homeostasis and Protection, Life Sciences Institute, Zhejiang University, Hangzhou, China
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Chen C, Chen J, Fang R, Ye F, Yang Z, Wang Z, Shi F, Tan W. What medical waste management system may cope With COVID-19 pandemic: Lessons from Wuhan. Resour Conserv Recycl 2021; 170:105600. [PMID: 33821099 PMCID: PMC8011665 DOI: 10.1016/j.resconrec.2021.105600] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/26/2021] [Accepted: 03/27/2021] [Indexed: 05/22/2023]
Abstract
The global pandemic caused by the 2019 coronavirus (COVID-19) has led to a dramatic increase in medical waste worldwide. This tremendous increase in medical waste is an important transmission medium for the virus and thus poses new and serious challenges to urban medical waste management. This study investigates the response of medical waste management to the COVID-19 pandemic and subsequent changes in Wuhan City based on the most detailed data available, including waste generation, storage, transportation, and disposal. The results show that despite a 5-fold increase in the demand for daily medical waste disposal in the peak period, the quick responses in the storage, transportation, and disposal sectors during the pandemic ensured that all medical waste was disposed of within 24 hours of generation. Furthermore, this paper discusses medical waste management during future emergencies in Wuhan. The ability of the medical waste management system in Wuhan to successfully cope with the rapid increase in medical waste caused by major public health emergencies has important implications for other cities suffering from the pandemic and demonstrates the need to establish resilient medical emergency systems in urban areas.
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Affiliation(s)
- Chang Chen
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, 430070 Hubei, Wuhan, China
- College of Resource and Environment, Huazhong Agricultural University, 430070 Hubei, Wuhan, China
| | - Jiaao Chen
- School of Resource and Environment Science, Wuhan University, 430072 Hubei, Wuhan, China
| | - Ran Fang
- School of Resource and Environment Science, Wuhan University, 430072 Hubei, Wuhan, China
| | - Fan Ye
- School of Resource and Environment Science, Wuhan University, 430072 Hubei, Wuhan, China
| | - Zhenglun Yang
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, 430070 Hubei, Wuhan, China
- College of Resource and Environment, Huazhong Agricultural University, 430070 Hubei, Wuhan, China
| | - Zhen Wang
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, 430070 Hubei, Wuhan, China
- College of Resource and Environment, Huazhong Agricultural University, 430070 Hubei, Wuhan, China
| | - Feng Shi
- Lishui Institute of Ecology and Environment, Nanjing University, Nanjing 211200, China
| | - Wenfeng Tan
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, 430070 Hubei, Wuhan, China
- College of Resource and Environment, Huazhong Agricultural University, 430070 Hubei, Wuhan, China
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27
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Xiong Q, Jiang S, Fang R, Chen L, Liu S, Liu Y, Yin S, Hou H, Wu X. An environmental-friendly approach to remove cyanide in gold smelting pulp by chlorination aided and corncob biochar: Performance and mechanisms. J Hazard Mater 2021; 408:124465. [PMID: 33191029 DOI: 10.1016/j.jhazmat.2020.124465] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/14/2020] [Accepted: 10/31/2020] [Indexed: 06/11/2023]
Abstract
In this study, a new process was developed using ClO- and corncob biochar (CB) combined with HAS (a stabilizer) to remove cyanide from gold smelting pulp. The Box-Behnken design was employed to optimize the doses of treatment reagents during cyanide removal. Results showed that the optimal doses of the three reagents were as follows: ClO- dose of 20 mg/g dry solid (DS), CB dose of 22 mg/g DS, and an HAS dose of is 24 mg/g DS. The cyanide concentration in the filtrate was the lowest (0.114 mg/L), with a 98.36% removal efficiency after a contact time of 2 h at 25 °C under optimized conditions. Compared with those of ClO- and HAS, it was found that the dose of biochar was the dominant factor influencing cyanide removal. Batch sorption experiments of cyanide to biochar indicated that the Langmuir isotherm model fit the sorption data, and the maximum cyanide sorption capacity was expected to be 2.57 ± 0.06 mg/g. Density functional theory (DFT) calculations (interaction energy was -74.42 kcal/mol) indicated that the adsorption peak resulted from cation-π interactions between the cyanide and CB. This study could lead to a novel environmental-friendly approach for the removal of cyanide from gold smelting pulp.
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Affiliation(s)
- Qiao Xiong
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; School of Resource and Environment Science, Wuhan University, Wuhan 430072, China
| | - Shijie Jiang
- School of Resource and Environment Science, Wuhan University, Wuhan 430072, China
| | - Ran Fang
- School of Resource and Environment Science, Wuhan University, Wuhan 430072, China
| | - Lei Chen
- School of Resource and Environment Science, Wuhan University, Wuhan 430072, China
| | - Shuhua Liu
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
| | - Yao Liu
- College of Environmental and Biological Engineering, Wuhan Technology and Business University, Wuhan, Hubei, 430065, China
| | - Shanshan Yin
- Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Haobo Hou
- School of Resource and Environment Science, Wuhan University, Wuhan 430072, China
| | - Xiang Wu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China.
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28
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Dai SS, Yang L, Zhou L, Gao Y, Fang R, Kirillov AM, Yang L. DFT Quest of the Active Species of the Gallium-Mediated Coupling of Methylidenemalonates and Acetylenes. Inorg Chem 2021; 60:995-1006. [PMID: 33390011 DOI: 10.1021/acs.inorgchem.0c03113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, three different Ga-containing systems based on GaCl3, Ga2Cl6, or ionic [Ga(L)3][GaCl4]3 (L = methylidenemalonate) complex were screened to elucidate the mechanism, regioselectivity, chemoselectivity, and role of Ga mediator in the reaction between two types of acetylenes (phenylacetylene and but-1-yn-1-ylbenzene) and methylidenemalonates, i.e., the 1,2-zwitterionic precursors that are similar to intermediates derived from donor-acceptor cyclopropanes (DACs). Our DFT calculation results clearly show that the ionic gallium complex [Ga(L)3][GaCl4]3 represents the key mediator in the title reaction. After the formation of such a complex, the first reaction step is the nucleophilic addition of phenylacetylene or but-1-yn-1-ylbenzene to [Ga(L)3][GaCl4]3, generating an unstable vinyl cation intermediate. In the phenylacetylene system, this vinyl cation intermediate accepts a chlorine atom from [GaCl4]- to give E-configuration intermediate. Then, the above process occurs to other two ligands of the Ga(III) complex to furnish a final product. On the other hand, in the but-1-yn-1-ylbenzene system, the vinyl cation intermediate prefers to undergo Friedel-Crafts (F-C) alkylation to generate a five-membered ring intermediate. This process is repeated on the other two methylidenemalonate ligands, giving rise to a final cyclization product. The distortion/interaction analysis shows that in the nucleophilic addition step the distortion energy of the Ga complex part is the main factor that influences the activation energy. Furthermore, the global reactivity index (GRI) analysis indicates that the Ga-complex model has the highest electrophilicity index ω, thus leading to the lowest energy barrier among three Ga-based models. In addition, DFT results reveal that the regioselectivity (E-configuration preference) and chemoselectivity (chloration or F-C alkylation) are mainly controlled by the steric effect rather than the electronic effect. The main findings of the present work provide a new way to analyze and rationalize various Ga-mediated reactions, which might also be extrapolated to organic transformations undergoing in the presence of aluminum and indium complexes.
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Affiliation(s)
- Song-Shan Dai
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Lin Zhou
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - YuanYuan Gao
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.,College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Alexander M Kirillov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.,Research Institute of Chemistry, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Lizi Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China.,College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
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29
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Fang R, Zhou L, Kirillov AM, Yang L. DFT Study on Zr-Catalyzed Alkene Hydroaminoalkylation: Origin of Regioselectivity, Diastereoselectivity, and Influence of Substrate. Org Lett 2021; 23:583-587. [PMID: 33404246 DOI: 10.1021/acs.orglett.0c04119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A DFT study was carried out to investigate a zirconium-catalyzed hydroaminoalkylation of alkenes with N-silylated benzylamine. A global reactivity index (GRI) analysis showed that that substrates act as electrophiles while the active zirconaaziridine behaves as a nucleophile. Furthermore, the distortion/interaction analysis unveiled the role of the distortion and interaction energies in controlling the regioselectivity and diastereoselectivity when different alkene substrates are used. These results provide an in-depth analysis on how the substrate type influences the product selectivity.
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Affiliation(s)
- Ran Fang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Lin Zhou
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Alexander M Kirillov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.,Research Institute of Chemistry, Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya st., Moscow 117198, Russian Federation
| | - Lizi Yang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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30
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Gao C, Cao T, Kirillov AM, Fang R, Yang L. Rationalization of the mechanism and chemoselectivity of versatile Au-catalyzed reactions of diazoesters with allyl-functionalized sulfides, selenides, amines, or ethers by DFT. Org Chem Front 2021. [DOI: 10.1039/d1qo00920f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The origin of chemoselectivity and the mechanism of the title reactions were fully rationalized by density functional theory (DFT).
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Affiliation(s)
- Caicai Gao
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Teng Cao
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Alexander M. Kirillov
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
- Research Institute of Chemistry, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya st., Moscow, 117198, Russian Federation
| | - Ran Fang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Lizi Yang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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31
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Liao H, Jiang L, Fang R, Qin R. A consensus measure for group decision making with hesitant linguistic preference information based on double alpha-cut. Appl Soft Comput 2021. [DOI: 10.1016/j.asoc.2020.106890] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Yao T, Wang B, He D, Zhang X, Li X, Fang R. Ligand-Controlled Palladium-Catalyzed Chemoselective Multicomponent Reaction of Olefin-Tethered Aryl Halides, Isocyanides, and Carboxylic Acids: Diversified Synthesis of Imides. Org Lett 2020; 22:6784-6789. [DOI: 10.1021/acs.orglett.0c02297] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tuanli Yao
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Bo Wang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Dan He
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Xiaofei Zhang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Xiang Li
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Ran Fang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
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33
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Robledo EA, Schutzman R, Fang R, Fernandez C, Kwasinski R, Leiva K, Perez-Clavijo F, Godavarty A. Physiological wound assessment from coregistered and segmented tissue hemoglobin maps. J Opt Soc Am A Opt Image Sci Vis 2020; 37:1249-1256. [PMID: 32749259 DOI: 10.1364/josaa.394985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
A handheld near-infrared optical scanner (NIROS) was recently developed to map for effective changes in oxy- and deoxyhemoglobin concentration in diabetic foot ulcers (DFUs) across weeks of treatment. Herein, a coregistration and image segmentation approach was implemented to overlay hemoglobin maps onto the white light images of ulcers. Validation studies demonstrated over 97% accuracy in coregistration. Coregistration was further applied to a healing DFU across weeks of healing. The potential to predict changes in wound healing was observed when comparing the coregistered and segmented hemoglobin concentration area maps to the visual area of the wound.
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34
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Zhang J, Song R, Zhao X, Fang R, Zhang B, Qian W, Zhang J, Liu C, He D. Flexible Graphene-Assembled Film-Based Antenna for Wireless Wearable Sensor with Miniaturized Size and High Sensitivity. ACS Omega 2020; 5:12937-12943. [PMID: 32548477 PMCID: PMC7288573 DOI: 10.1021/acsomega.0c00263] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/11/2020] [Indexed: 05/17/2023]
Abstract
The flexible radio frequency (RF) wireless antennas used as sensors, which can detect signal variation resulting from the deformation of the antenna, have attracted increasing attention with the development of wearable electronic devices and the Internet of Things (IoT). However, miniaturization and sensitivity issues restrict the development of flexible RF sensors. In this work, we demonstrate the application of a flexible and highly conductive graphene-assembled film (GAF) for antenna design. The GAF with a high conductivity of 106 S/m has the advantages of light weight, high flexibility, and superb mechanical stability. As a result, a small-size (50 mm × 50 mm) and flexible GAF-based antenna operating at 3.13-4.42 GHz is achieved, and this GAF antenna-based wireless wearable sensor shows high strain sensitivities of 34.9 for tensile bending and 35.6 for compressive bending. Furthermore, this sensor exhibits good mechanical flexibility and structural stability after a 100-cycle bending test when attached to the back of the hand and the wrist, which demonstrates broad application prospects in health-monitoring devices, electronic skins, and smart robotics.
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Affiliation(s)
- Jibo Zhang
- Hubei
Engineering Research Center of RF-Microwave Technology and Application,
School of Science, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Rongguo Song
- Hubei
Engineering Research Center of RF-Microwave Technology and Application,
School of Science, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Xin Zhao
- Hubei
Engineering Research Center of RF-Microwave Technology and Application,
School of Science, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Ran Fang
- Hubei
Engineering Research Center of RF-Microwave Technology and Application,
School of Science, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Bin Zhang
- Hubei
Engineering Research Center of RF-Microwave Technology and Application,
School of Science, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Wei Qian
- Hubei
Engineering Research Center of RF-Microwave Technology and Application,
School of Science, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Jingwei Zhang
- Hubei
Engineering Research Center of RF-Microwave Technology and Application,
School of Science, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Chengguo Liu
- Hubei
Engineering Research Center of RF-Microwave Technology and Application,
School of Science, Wuhan University of Technology, Wuhan 430070, P. R. China
- . Tel: +86 139 86111739
| | - Daping He
- Hubei
Engineering Research Center of RF-Microwave Technology and Application,
School of Science, Wuhan University of Technology, Wuhan 430070, P. R. China
- State
Key Laboratory of Advanced Technology for Materials Synthesis and
Processing, Wuhan University of Technology, Wuhan 430070, P. R. China
- . Tel: +86 177 64000852
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35
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Xia NB, Lu Y, Zhao PF, Wang CF, Li YY, Tan L, Fang R, Zhou YQ, Shen B, Zhao JL. Genotyping and characterization of Toxoplasma gondii strain isolated from pigs in Hubei province, central China. Trop Biomed 2020; 37:489-498. [PMID: 33612818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Toxoplasma gondii, a ubiquitous pathogen that infects nearly all warm-blooded animals and humans, can cause severe complications to the infected people and animals as well as serious economic losses and social problems. Here, one local strain (TgPIG-WH1) was isolated from an aborted pig fetus, and the genotype of this strain was identified as ToxoDB #3 by the PCR RFLP typing method using 10 molecular markers (SAG1, SAG2, alternative SAG2, SAG3, BTUB, GRA6, L358, PK1, C22-8, C29-2 and Apico). A comparison of the virulence of this isolate with other strains in both mice and piglets showed that TgPIG-WH1 was less virulent than type 1 strain RH and type 2 strain ME49 in mice, and caused similar symptoms to those of ME49 such as fever in piglets. Additionally, in piglet infection with both strains, the TgPIG-WH1 caused a higher IgG response and more severe pathological damages than ME49. Furthermore, TgPIG-WH1 caused one death in the 5 infected piglets, whereas ME49 did not, suggesting the higher virulence of TgPIG-WH1 than ME49 during piglet infection. Experimental infections indicate that the virulence of TgPIG-WH1 relative to ME49 is weaker in mice, but higher in pigs. This is probably the first report regarding a ToxoDB #3 strain from pigs in Hubei, China. These data will facilitate the understanding of genetic diversity of Toxoplasma strains in China as well as the prevention and control of porcine toxoplasmosis in the local region.
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Affiliation(s)
- N B Xia
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - Y Lu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - P F Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - C F Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - Y Y Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - L Tan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - R Fang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - Y Q Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
| | - B Shen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
- Key Laboratory of Preventive Medicine in Hubei Province, Wuhan, Hubei Province, PR China
| | - J L Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, PR China
- Hubei Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei Province, PR China
- Key Laboratory of Preventive Medicine in Hubei Province, Wuhan, Hubei Province, PR China
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36
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Chiu WC, Powers DB, Hirshon JM, Shackelford SA, Hu PF, Chen SY, Chen HH, Mackenzie CF, Miller CH, DuBose JJ, Carroll C, Fang R, Scalea TM. Impact of trauma centre capacity and volume on the mortality risk of incoming new admissions. BMJ Mil Health 2020; 168:212-217. [PMID: 32474436 DOI: 10.1136/bmjmilitary-2020-001483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Trauma centre capacity and surge volume may affect decisions on where to transport a critically injured patient and whether to bypass the closest facility. Our hypothesis was that overcrowding and high patient acuity would contribute to increase the mortality risk for incoming admissions. METHODS For a 6-year period, we merged and cross-correlated our institutional trauma registry with a database on Trauma Resuscitation Unit (TRU) patient admissions, movement and discharges, with average capacity of 12 trauma bays. The outcomes of overall hospital and 24 hours mortality for new trauma admissions (NEW) were assessed by multivariate logistic regression. RESULTS There were 42 003 (mean=7000/year) admissions having complete data sets, with 36 354 (87%) patients who were primary trauma admissions, age ≥18 and survival ≥15 min. In the logistic regression model for the entire cohort, NEW admission hospital mortality was only associated with NEW admission age and prehospital Glasgow Coma Scale (GCS) and Shock Index (SI) (all p<0.05). When TRU occupancy reached ≥16 patients, the factors associated with increased NEW admission hospital mortality were existing patients (TRU >1 hour) with SI ≥0.9, recent admissions (TRU ≤1 hour) with age ≥65, NEW admission age and prehospital GCS and SI (all p<0.05). CONCLUSION The mortality of incoming patients is not impacted by routine trauma centre overcapacity. In conditions of severe overcrowding, the number of admitted patients with shock physiology and a recent surge of elderly/debilitated patients may influence the mortality risk of a new trauma admission.
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Affiliation(s)
- William C Chiu
- R Adams Cowley Shock Trauma Center, Baltimore, Maryland, USA
| | - D B Powers
- Director, Craniomaxillofacial Trauma Program, Duke University Hospital, Durham, North Carolina, USA
| | - J M Hirshon
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | | | - P F Hu
- University of Maryland Medical Center, Baltimore, Maryland, USA
| | - S Y Chen
- National Yunlin University of Science and Technology, Douliou, Taiwan
| | - H H Chen
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - C F Mackenzie
- Shock Trauma and Anesthesiology Research - Organized Research Center (STAR-ORC), University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - C H Miller
- US Air Force Materiel Command, Wright-Patterson AFB, Ohio, USA
| | - J J DuBose
- R Adams Cowley Shock Trauma Center, Baltimore, Maryland, USA.,Center for Sustainment of Trauma and Readiness Skills - Baltimore, US Air Force Medical Service, Baltimore, Maryland, USA
| | | | - R Fang
- Surgery, Johns Hopkins Bayview Medical Center, Baltimore, Maryland, USA
| | - T M Scalea
- R Adams Cowley Shock Trauma Center, Baltimore, Maryland, USA
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37
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Zhang H, Tang K, Fang R, Sun Q. What dermatologists could do to cope with the novel coronavirus (SARS-CoV-2): a dermatologist's perspective from China. J Eur Acad Dermatol Venereol 2020; 34:e211-e212. [PMID: 32220020 DOI: 10.1111/jdv.16389] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- H Zhang
- Department of Dermatology, Peking Union Medical College Hospital, Beijing, China
| | - K Tang
- Department of Dermatology, Peking Union Medical College Hospital, Beijing, China
| | - R Fang
- Department of Dermatology, Peking Union Medical College Hospital, Beijing, China
| | - Q Sun
- Department of Dermatology, Peking Union Medical College Hospital, Beijing, China
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38
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Fang R, Yang L, Zhou L, Kirillov AM, Yang L. Carbocation versus Carbene Controlled Chemoselectivity: DFT Study on Gold- and Silver-Catalyzed Alkylation/Cyclopropanation of Indoles with Vinyl Diazoesters. Org Lett 2020; 22:4043-4048. [PMID: 32356993 DOI: 10.1021/acs.orglett.0c01476] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Density functional theory calculations were performed to investigate the catalyst-controlled selective functionalization of indoles with vinyl diazoacetates. The detailed reaction mechanism was established, and different roles of carboncation or carbene intermediates in defining an experimentally observed chemo- and regioselectivity were fully rationalized.
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Affiliation(s)
- Ran Fang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China.,State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Lin Zhou
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Alexander M Kirillov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal.,Research Institute of Chemistry, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya st., Moscow, 117198, Russian Federation
| | - Lizi Yang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China.,State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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39
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Fang R, Feng Z, Kirillov AM, Yang L. Density Functional Theory Study of the Metal-Catalyzed Cycloaddition of Indolyl-Allenes: Possible Reaction Pathways, Stereoselectivity, and Regioselectivity. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00080] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ran Fang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, P. R. China
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhitao Feng
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Alexander M. Kirillov
- Centro de Quı́mica Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
- Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya st., Moscow 117198, Russia
| | - Lizi Yang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, P. R. China
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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40
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Fang R, Kirillov AM, Yang L. DFT study on the “Silver effect” in gold-catalyzed hydroamination of terminal alkynyl sulfamides. Molecular Catalysis 2020. [DOI: 10.1016/j.mcat.2020.110847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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41
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Fang R, Song R, Zhao X, Wang Z, Qian W, He D. Compact and Low-Profile UWB Antenna Based on Graphene-Assembled Films for Wearable Applications. Sensors (Basel) 2020; 20:E2552. [PMID: 32365820 PMCID: PMC7249118 DOI: 10.3390/s20092552] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/24/2020] [Accepted: 04/25/2020] [Indexed: 12/11/2022]
Abstract
In this article, a graphene-assembled film (GAF)-based compact and low-profile ultra-wide bandwidth (UWB) antenna is presented and tested for wearable applications. The highly conductive GAFs (~106 S/m) together with the flexible ceramic substrate ensure the flexibility and robustness of the antenna, which are two main challenges in designing wearable antennas. Two H-shaped slots are introduced on a coplanar-waveguide (CPW) feeding structure to adjust the current distribution and thus improve the antenna bandwidth. The compact GAF antenna with dimensions of 32 × 52 × 0.28 mm3 provides an impedance bandwidth of 60% (4.3-8.0 GHz) in simulation. The UWB characteristics are further confirmed by on-body measurements and show a bending insensitive bandwidth of ~67% (4.1-8.0 GHz), with the maximum gain at 7.45 GHz being 3.9 dBi and 4.1 dBi in its flat state and bent state, respectively. Our results suggest that the proposed antenna functions properly in close proximity to a human body and can sustain repetitive bending, which make it well suited for applications in wearable devices.
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Affiliation(s)
- Ran Fang
- Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China; (R.F.); (R.S.); (X.Z.); (Z.W.); (W.Q.)
| | - Rongguo Song
- Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China; (R.F.); (R.S.); (X.Z.); (Z.W.); (W.Q.)
| | - Xin Zhao
- Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China; (R.F.); (R.S.); (X.Z.); (Z.W.); (W.Q.)
| | - Zhe Wang
- Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China; (R.F.); (R.S.); (X.Z.); (Z.W.); (W.Q.)
| | - Wei Qian
- Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China; (R.F.); (R.S.); (X.Z.); (Z.W.); (W.Q.)
| | - Daping He
- Hubei Engineering Research Center of RF-Microwave Technology and Application, Wuhan University of Technology, Wuhan 430070, China; (R.F.); (R.S.); (X.Z.); (Z.W.); (W.Q.)
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
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42
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Wang Y, Zhang H, Fang R, Tang K, Sun Q. The top 100 most cited articles in rosacea: a bibliometric analysis. J Eur Acad Dermatol Venereol 2020; 34:2177-2182. [PMID: 32078196 DOI: 10.1111/jdv.16305] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/06/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Y. Wang
- Department of Dermatology Peking Union Medical College Hospital Beijing China
- Eight‐year MD Program Peking Union Medical College Beijing China
| | - H. Zhang
- Department of Dermatology Peking Union Medical College Hospital Beijing China
- Eight‐year MD Program Peking Union Medical College Beijing China
| | - R. Fang
- Department of Dermatology Peking Union Medical College Hospital Beijing China
| | - K. Tang
- Department of Dermatology Peking Union Medical College Hospital Beijing China
- Eight‐year MD Program Peking Union Medical College Beijing China
| | - Q. Sun
- Department of Dermatology Peking Union Medical College Hospital Beijing China
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43
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An X, Du J, Jia Z, Zhang Q, Yu K, Zhang Y, Zhao X, Fang R, Fan C. Asymmetric Catalytic [4+5] Annulation of
ortho
‐Quinone Methides with Vinylethylene Carbonates and its Extension to Stereoselective Tandem Rearrangement. Chemistry 2020; 26:3803-3809. [DOI: 10.1002/chem.201904903] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Xian‐Tao An
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Ji‐Yuan Du
- College of Chemistry and Chemical EngineeringLiaocheng University 1 Hunan Road Liaocheng 252059 China
| | - Zhi‐Long Jia
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Qing Zhang
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Ke‐Yin Yu
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Yi‐Zhou Zhang
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Xian‐He Zhao
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Ran Fang
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
| | - Chun‐An Fan
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University 222 Tianshui Nanlu Lanzhou 730000 China
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44
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Fang R, Zhang Y, Kirillov AM, Yang L. The DFT Quest for Possible Reaction Pathways, Catalytic Species, and Regioselectivity in the InCl 3-Catalyzed Cycloaddition of N-Tosyl Formaldimine with Olefins or Allenes. J Org Chem 2020; 85:3676-3688. [PMID: 31977213 DOI: 10.1021/acs.joc.9b03309] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The present work focuses on a theoretical investigation of the plausible mechanism, determination of catalytically active species, and understanding of the regioselectivity in the InCl3-catalyzed cycloaddition of N-tosyl formaldimine with alkenes or allenes. InCl3 and InCl2+ coordinated by dichloroethane (InCl2+-DCE) were investigated as model catalytic systems. DFT data supported that InCl2+-DCE represent the plausible in situ generated catalytic species. The catalytic cycle starts from the coordination of N-tosyl formaldimine to InCl2+-DCE, generating an In-complexed iminium intermediate. This then undergoes intermolecular reaction (aza-Prins) with alkene substrate to form a carbocation intermediate, which is chemoselectively attacked by the second N-tosyl formaldimine molecule to form a formaldiminium intermediate. In a final step, this intermediate undergoes the ring closure, leading to hexahydropyrimidine along with the regeneration of catalyst. In addition, our DFT results indicate that N-tosyl formaldimine not only acts as a reactant but also accelerates the 1,3-H-shift as a proton acceptor, giving an experimentally observed allylamide product. Also, the "iminium/alkene/imine" path was supported by calculation results for diastereoselective [2 + 2 + 2] reaction using an internal alkene. Finally, the regioselectivity of the InCl3-catalyzed cycloaddition using allenes along with N-tosyl formaldimine was also analyzed.
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Affiliation(s)
- Ran Fang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China.,State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Youchang Zhang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Alexander M Kirillov
- Centro de Quimica Estrutural, Complexo I, Instituto Superior Tecnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal.,Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya st., Moscow, 117198, Russia
| | - Lizi Yang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China.,State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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45
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Zhang J, Liu M, Wu C, Zhao G, Chen P, Zhou L, Xie X, Fang R, Li H, She X. Total Synthesis of (−)‐Pepluanol B: Conformational Control of the Eight‐Membered‐Ring System. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915876] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jing Zhang
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Meng Liu
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Chuanhua Wu
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Gaoyuan Zhao
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Peiqi Chen
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Lin Zhou
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Huilin Li
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
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46
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Zhang J, Liu M, Wu C, Zhao G, Chen P, Zhou L, Xie X, Fang R, Li H, She X. Total Synthesis of (−)‐Pepluanol B: Conformational Control of the Eight‐Membered‐Ring System. Angew Chem Int Ed Engl 2020; 59:3966-3970. [DOI: 10.1002/anie.201915876] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Indexed: 02/03/2023]
Affiliation(s)
- Jing Zhang
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Meng Liu
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Chuanhua Wu
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Gaoyuan Zhao
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Peiqi Chen
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Lin Zhou
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Huilin Li
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University 222 South Tianshui Road Lanzhou 730000 Gansu P. R. China
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47
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Zhou L, Yang L, Dai S, Gao Y, Fang R, Kirillov AM, Yang L. Insight into the reaction mechanism and chemoselectivity in the cycloaddition of ynamides and isoxazoles with H2O. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01964b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism and chemoselectivity in the cycloaddition of ynamides and isoxazoles have been explored by the density functional theory (DFT) in model systems composed of a Brønsted acid (HNTf2), gold(i) [IPrAuNTf2] or platinum(ii) (PtCl2/CO) catalyst.
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Affiliation(s)
- Lin Zhou
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Li Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Songshan Dai
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yuanyuan Gao
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Alexander M. Kirillov
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Lizi Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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48
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Abstract
A wide array of 2,3-disubstituted indoles were accessed in modest to good yields via a tandem reduction/condensation/fragmentation/cyclization sequence. Differential fragmentation made the reaction more complicated.
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Affiliation(s)
- Shiqiang Ma
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Dan Long
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Peiqi Chen
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Hongliang Shi
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Huilin Li
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiaolei Wang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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49
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Liao H, Ren Z, Fang R. A Deng-Entropy-Based Evidential Reasoning Approach for Multi-expert Multi-criterion Decision-Making with Uncertainty. INT J COMPUT INT SYS 2020. [DOI: 10.2991/ijcis.d.200814.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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50
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Rao L, Meng FL, Fang R, Cai CY, Zhao XL. [Molecular mechanism of microRNA in regulating cochlear hair cell development]. Yi Chuan 2019; 41:994-1008. [PMID: 31735703 DOI: 10.16288/j.yczz.19-119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Deafness has become one of the most frequent health problems worldwide, and affects almost every age group. Hair cell damage or absence is the main cause of hearing loss, but there is no successful treatment to heal deafness. MicroRNA (miRNA), as a highly conserved endogenous non-coding small RNA, plays an important role in inner ear cochlea and hair cell development. In this review, we elaborate on the expression and function of miRNAs in cochlear hair cell development, and reveal its indispensable important role. We summarize the molecular mechanism of miRNA in regulating transcription factors involved in cochlear hair cell development, which may provide references and insights for hair cell regeneration in vivo and cellular transplantation therapy of deafness.
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Affiliation(s)
- Lin Rao
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Fei Long Meng
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ran Fang
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chen Yi Cai
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiao Li Zhao
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Institute of Genetics and Regenerative Biology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
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